Paper-cutting machine



g (No Model). I W. F. HILL.

PAPER GU'ITING MACHINE; I No. 272,438. Patented Feb. 20. 1883.

I W'f zeanrew. I zkva zworz Unite STATES ATENT @FFIcn.

' WILBER F. HILL, NORTH MANCHESTER, CONNECTICUT.

PAPER-CUTTING MACHINE.

SPECIFICATION formingpart of Letters Patent noqeva iss, dated February20, 1883.

Application filed November 27, 1882. (No model.) I

' 1 To all whom tt may concern:

Be it known that I, WILBER F. HILL, of North Manchester, in the countyof Hartford and State of Connecticut, have invented certain new anduseful Improvements in Paper- Outting Machines; and I do hereby-declarethat the following is a full, clear, and exact description thereof,whereby a person skilled in the art can make and use the same, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon.

Like letters in the figures indicate the same parts. My improvementrelates to devices for cutting sheets of paper of any desired lengthfrom a continuous strip fed into the cutting mechanism from a roll orfrom a paper-making ma chine.

The object of my invention is to provide a mechanism which shall cutthe'sheets of an exact size to any required length, so as to prevent thewaste in subsequent trimming, which is experienced with the cuttingdevices now in use.

In the accompanying drawings, illustrating my invention, Figure 1 is arear view of my improved mechanism, or the side upon which the strip ofpaper enters. Fig. 2 isa view ofthe lelt side of Fig. 1, showing themechanism for regulatingthe length of the sheet'cut 01f. Figs 3 is across-section through the machine, looking toward the end shown in Fig.2..

A is the frame of the machine.

B is the roll which feeds the paper to the cutter. V

G is a pressure-roll, which holds the paper against the roll B withsufficient force to insure its being carried along uniformly by thefeeding-roll.

D is the cutter-bar, which has a reciprocating movement in slides E,attached to the frame A at each end of the cutter-bar. The

cutter-bar is moved by the two connectingrods F F, attached to thecranks G G, which receive their motion from the rocking shaft H. J is anarm attached to the rocking shaft H.

-It is connected by the connecting-rod K to a crank-pin on the wheel L,the revolution of which moves the rocking shaft H. p

M is a spring-stop resting in a nick in the wheel L for holding it inposition when at rest.

N is agear-wheel upon the shaft of the roll B for communicating'motion-to the cutting.

that the wheel P receives its motion from N through the wheel 0. Uponthe other set of teeth upon the wheel P runs the geared band Q, theinner side of which is provided with teeth which gear into the teeth ofthe wheel P. On each side of the set of teeth which drive the band Q areflanges B, so as to hold the band upon the wheel and prevent it fromrunning off at the sides. The band Q is represented in the drawings asbeingcomposed of a number of linksjointed together in the form of achain, each link being part of a toothed rim which would fit upon thegeared wheel 1?. A certain number of these links are provided withexterior teeth which gear into the spurwheel S, which is keyed to theshaft of the Wheel L on the other side of the side plate of the frame A,so that the wheels S and L turn together. The exterior teeth on the bandQ are intended to turn the wheel S exactly once around, the number ofteeth on the band and on the wheel being the same. The other links ofthe band Q are without exterior teeth, and are of such a thickness thatthey will pass between the wheels P and S when the interior teeth areengaged with the wheel P. The

links of the band Q are removable and detachable from each other, sothat the band can be made of any length desired. The links withoutexterior teeth are made of difi'erent numbers of interior teeth, so thatby putting different ones and different numbers into the bandit can bemade longer or shorter, and have different numbers of teeth in the fullcircuit. This is for the purpose of bringing the links containing theexterior teeth to engage with the wheel S at such number of turns orparts of turns of the wheel 1? as may be desired, and thus regulate theinterval between which the cuts of the paper are made to the extent ofthe small space represented by one of the interior teeth. In thedrawings the wheel P is represented to be geared so that it will haveits circumference move at double the speed of the surface of the roll B,which moves the paper to be cut. If the teeth of P are one-fourth ofaninch the papercan therefore be cut to sizes varying by one-eighth of aninch. By varying the length of the band or chain Q, all sizes of sheetscan be cut, and the degree of difference between the sizes can be madefiner by decreasing the size of the teeth on the second set of teeth onthe wheel P, or the speed between the wheels N and P can be multipliedto any extent desired.

The operation of my invention is as follows: The paper passescontinuously between the rolls B and U, the roll B being driven by anysuitable power. This also drives the wheel P continuously. As the linksof the band Q which do not have the exterior teeth pass over the wheel Pthe cutter does not operate; but when the exterior teeth on the band Qcome in contact with the wheel S they revolve this wheel and the wheel Lonce around, which causes the cutter to advance and reeede and cut ofl'asheet from thecontinuous st ip. When the wheel L has madeone completerevolution it again is caught and held by the spring M, which enters itsnotch. This is made in the customary manner, so that it is forced out asthe wheel is turned, but is snfficient to hold the wheel from turningaccidentally, an'd insures its correct position when it stops.

What I claim as my invention is- 1. The combination of the gear-wheel Non the shaft of the feeding-roll B, the double-gear wheel P, connectedwith N by intermediate gearing, the adjustable band Q, having interiorand exterior teeth, as described, and the gear-wheel S, which drives thecutting mechanism, substantially as set forth.

2. The band Q, provided with gear-teeth all around its interior side,and exterior teeth upon onlya portion of its exterior side, incombination with the gear-wheel P, which drives the said bandcontinuously, and the wheel S, which receives an intermittent motionfrom the exterior teeth, substantially as described.

3. The band Q, composed of a series of removable links, by which itslength is adjustable, said links being all provided with interior teeth,and part of which are provided with exterior teeth as a means forcommunicating an adjustable intermittent movement from one gear-wheel toanother, substantially as described.

WILBER F. HILL.

Witnesses NATHAN T. PULSIFER, Tano. Gr. ELLIS.

